Elasticsearch_install_ubuntu_1404.sh

# Change directory -> to your login directory
cd ~


# ---------------------------------- J A V A dependency installation
# Installing Java 8 
# Add Oracle Java PPA to apt
sudo add-apt-repository -y ppa:webupd8team/java

# Update repo
sudo apt-get update

# Install Java 8
sudo apt-get -y install oracle-java8-installer

# Check if installed correctly (should return the version number)
java -version
## This should return -------------------- 
#java version "1.8.0_121"
#Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
#Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)



# ---------------------------------- E L A S T I C S E A R C H installation
# Download from ES site (Current version: 5.2) 
# https://www.elastic.co/guide/en/elasticsearch/reference/current/deb.html
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-5.2.0.deb

# Compare the SHA produced by sha1sum or shasum with the published SHA
sha1sum elasticsearch-5.2.0.deb

# Install the downloaded ES
sudo dpkg -i elasticsearch-5.2.0.deb

# Start elastic search
sudo /etc/init.d/elasticsearch start
## Positive/Successful response should be like
# * Starting Elasticsearch Server     [ OK ]
  
# Check if elastic search is running
curl http://localhost:9200
## This should return something like:
# {
#  "name" : "xxxxxxx",
#  "cluster_name" : "elasticsearch",
#  "cluster_uuid" : "xxxxxxxxxxxxxxxxxxxxxxx",
#  "version" : {
#    "number" : "5.2.0",
#    "build_hash" : "xxxxxxx",
#    "build_date" : "2017-01-24T19:52:35.800Z",
#    "build_snapshot" : false,
#    "lucene_version" : "6.4.0"
#  },
#  "tagline" : "You Know, for Search"
#}



 #-------------------------------------- O P T I N A L
#(Optional) Start elasticsearch automatically on syatem startup
sudo update-rc.d elasticsearch defaults 95 10
## This should return something similar to this
# Adding system startup for /etc/init.d/elasticsearch ...
#   /etc/rc0.d/K10elasticsearch -> ../init.d/elasticsearch
#   /etc/rc1.d/K10elasticsearch -> ../init.d/elasticsearch
#   /etc/rc6.d/K10elasticsearch -> ../init.d/elasticsearch
#   /etc/rc2.d/S95elasticsearch -> ../init.d/elasticsearch
#   /etc/rc3.d/S95elasticsearch -> ../init.d/elasticsearch
#   /etc/rc4.d/S95elasticsearch -> ../init.d/elasticsearch
#   /etc/rc5.d/S95elasticsearch -> ../init.d/elasticsearch

######### ============== D O N E =============== #########